Hibernate继承映射与子类的ManyToOne关系

Question

将Employee Class映射到Task Class作为OneToMany映射。 （具有Task对象列表的员工。）

Employee类扩展了Person类。

类图如下，

我尝试使用以下代码作为 *表每具体类方法* ，但它没有工作

Person.java

@Entity  
@Table(name = "Person ")  
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)  
public class Person {

    @Id
    @GeneratedValue
    private Long id;

    private String name;

    private int age;

    // implemented getters and setters
}

Employee.java

@Entity  
@Table(name="Employee")  
@AttributeOverrides({  
    @AttributeOverride(name="id", column=@Column(name="id"))
})  
public class Employee extends Person{

    @Id
    @GeneratedValue
    private Long id;

    private String jobName;

    @OneToMany(mappedBy = "employee", cascade = CascadeType.ALL)
    private List<Task> tasks;

    // implemented getters and setters
}

Task.java

@Entity
@Table(name="Task")
public class Task {

    @Id
    @GeneratedValue
    private Long id;

    private String taskName;

    private double deadLine;

    @ManyToOne
    @JoinColumn(name = "employeeID")
    private Employee employee;

    // implemented getters and setters
}

如何为此执行hibernate映射，